Pin head



FIG. 1 is a top perspective view of pin head showing my new design.

FIG. 2 is a top view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a side view thereof which is the same as the rear, left, right view of the invention; and,

FIG. 5 is a bottom perspective view thereof. 

The ornamental design for a pin head, as shown and described. 